Reactions of trans-Chloro(cyanomethyl)bis(triphenylphosphine)- and Chloro(cyanomethyl)palladium(II) Complexes with Various Thallium(I) β-Diketones

Article abstract of DOI:10.1246/bcsj.57.1012

Reactions of trans-chloro(cyanomethyl)bis(triphenylphosphine)palladium(II), trans (I), with an equimolecular amount of Tl(β-dik) (β-dik = etac, acac, tfac, bzac, and dbm) in dichloromethane afforded the O,O'-chelated β-dik complexes (3).Hydrogen peroxide oxidation and chloride abstraction by AgClO4 or AgBF4 of 1 gave the neutral n and the cationic mXm (X = ClO4 or BF4), respectively, from either of which complexes 3 were also obtained by the reactions with the β-dik anions.No pure product corresponding to 3 was isolated by a similar treatment of 1 with Tl(hfac).On the other hand, chloro(cyanomethyl)<1,2-bis(diphenylphosphino)ethane>palladium(II), (2), reacted only with Tl(hfac) in refluxing acetone to give the cationic 2(hfac)2, which was also derived from 2 via